Microbial material having salt-tolerant denitrification capacity as well as preparation method and application of microbial material

The invention discloses a microbial material having salt-tolerant denitrification capacity as well as a preparation method and application of the microbial material, and relates to the technical fieldof environmental microorganisms, in particular to a microbial material as well as a preparation method and application thereof. The invention aims to solve the problem of short denitrification effectmaintaining time in the existing method for directly adding the salt-tolerant denitrification microbial inoculum. The microbial material is prepared from a bacterial suspension, an external carbon source and an embedding medium. The method comprises the following steps: 1, modifying the external carbon source; 2, preparing the bacterial suspension; and step 3, embedding preparation of the microbial material. The microbial material disclosed by the invention has efficient salt-tolerant denitrification capacity, and nitrogen pollutants in wastewater can be efficiently removed under a salt stress condition. Besides, the